2g EXOSPOBE^. ■ [CEBATIOMYXA. 



The sporophores are subject to much Variation in form, and 

 may all be either white or pinkish -yellow. 



a. genuina : branches of sporophores short, free. 



B flexuosa: sporophores consisting of a loose flexuose system 

 of inder white threads, prof usely branching but not anastomosing, 



and averaging about "02 mm. in diameter, increasing to 5 mm. 

 arthe bas? the ultimate branchlets somewhat clavate. In other 

 characters this corresponds with the ty^.-Cerattum Jih/orme 

 Berk. & Br., in Journ. Linn. Soc, xiv., p. 97. 



V porioides : difiers from the type only in the dense arrangement 

 of the sporophores. As intermediate forms occur which unite it 

 with the type, I cannot consider it specifically distinct. Super- 

 ficially it suggests the appearance of Polyporus vulgaris, though 

 much more rmxm.ie.—Geratiwm porioides Alb.& Schw.,Consp.rung., 

 p. 359 ; Fr., Syst. Myc, iii., p. 295 ; Fam. & Wor., in Mem. Acad. 

 Imp. Petersb., Ser. 7, xx., p. 5; Zopf, PUzthiere, pp. 64, 174. 



Plate I A —Fig «i. rar. genuina : sporophores, x 20 (England) ; J. 

 spores of "the same, ■< 600 ; c. sporophores of a form approaching jar. 

 porioides, X 20 (England) ; d. Ya.r. flexuosa : sporophores, x 20 (Borneo), 

 e. claTate end of sporophore of the same (aU the spores but one have 

 fallen from their stalks), X 280. 



Sab Plasmodium in rotten wood, fruiting on the outside.— a. Lyme 

 Regis, Dorset (L-.B.M.l) ; Iowa (L:B.M.l). a. and ^. Borneo (L:B.M 1) 

 y. Carlsruhe (Strassb. Herb.) ; Upsala (L:B,M.l) ; Iowa (B.M. 1025). 



Subclass II. — ENDOSPORE^. Spores developed within the 

 sporangia. 



Cohort I. — AMA UR08P0RALES. Oapillitium always present. 

 Spores violet or violet-brown, but pale ferrugiaous in a few 

 species of Stemonitis and Gomatricha. 



Subcohort I. — CALOARINEj^. Deposits of lime in minute 

 granules, innate in the sporangium-wall or compacted in the 

 knots of the capillitium or in the stalk, or in crystals over the 

 sporangium-wall. 



Order I. — Physaeace^. Deposits of lime in minute granules, 

 more or less aggregated, not in crystals (except partially in 

 Ghond/rioderma Trevelyani), innate in the sporangium-wall, and 

 in vesicular expansions of the capillitium ( = lime knots), except 

 in Ghondrioderma and Tricliamphora, where there are no lime 

 knots, and in Biachcea, in which the lime is confined to the stalk 

 and columella. Sporangia simple except in Fuligo, where they 

 are combined into an sethalium. 



